EP1895137A2 - Agencement d'un arbre à manivelle dans un carter d'un moteur à combustion interne - Google Patents

Agencement d'un arbre à manivelle dans un carter d'un moteur à combustion interne Download PDF

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Publication number
EP1895137A2
EP1895137A2 EP07010763A EP07010763A EP1895137A2 EP 1895137 A2 EP1895137 A2 EP 1895137A2 EP 07010763 A EP07010763 A EP 07010763A EP 07010763 A EP07010763 A EP 07010763A EP 1895137 A2 EP1895137 A2 EP 1895137A2
Authority
EP
European Patent Office
Prior art keywords
crankshaft
bearing block
tapered
cheeks
cheek
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07010763A
Other languages
German (de)
English (en)
Other versions
EP1895137A3 (fr
Inventor
Manfred Batzill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1895137A2 publication Critical patent/EP1895137A2/fr
Publication of EP1895137A3 publication Critical patent/EP1895137A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0053—Crankshaft bearings fitted in the crankcase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/02—Crankshaft bearings

Definitions

  • the invention relates to an arrangement of a crankshaft in a crankcase of an internal combustion engine.
  • crankshafts In internal combustion engines find crankshafts use, which have at least one crankshaft cheek as mass balance.
  • the at least one crankshaft cheek passes through a recess of a bearing block of the crankcase.
  • the crankshaft itself is mounted in a plurality of plain bearings, which are assigned to the bearing block, in particular the main bearing block of the internal combustion engine.
  • crankshaft which is provided with several crankshaft cheeks as mass balance.
  • the crankshaft cheeks are provided with tapered ends.
  • a corresponding design of a crankshaft is from the U.S. Patent 3,088,783 known.
  • Object of the present invention is to optimize an arrangement of a crankshaft in a crankcase of an internal combustion engine to the effect that a high load capacity of the bearing block is ensured.
  • crankshaft in a crankcase of an internal combustion engine, wherein the crankshaft has at least one crankshaft cheek as mass balance, which passes through a recess of a bearing block of the crankcase, wherein the crankshaft cheek is provided with a tapered end and the bearing block in the region of is formed reinforced rejuvenating end of the crankshaft cheek.
  • the load capacity of the highly loaded bearing block area can be optimized, among other things, in view of minimizing the notch effect by largely flowing cross-sectional transitions in the bearing block area. It will be particularly advantageous considered when the end of the respective crankshaft cheek is tapered or stepped tapered designed.
  • the end of the respective crankshaft cheek facing area of the bearing block should be designed conical or stepped expanded. This makes it possible to represent a bearing of the crankshaft in the crankcase, in which a constant gap between the respective crankshaft cheek and the bearing block is formed.
  • crankshaft on both sides of a connecting rod crankshaft cheeks as mass balance, which pass through the recess of the bearing block, wherein the crankshaft cheeks are provided with tapered ends and the bearing block is formed reinforced in the region of the tapered ends of the crankshaft cheeks ,
  • the ends of the crankshaft cheeks are in particular designed to taper conically towards one another and the bearing block is of conically enlarged design such that a gap of substantially constant thickness is formed between the respective crankshaft cheek and the bearing block.
  • conical taper may also be provided a stepped taper, such that the ends of the crankshaft cheeks are stepped towards each other tapered designed and the bearing block is designed stepped, such that formed between the respective crankshaft cheek and the bearing block, a gap of substantially constant thickness is.
  • the inventive arrangement thus allows to reduce stresses in the transition of the bearing block to the actual crankcase and thus to ensure the fatigue strength in this area due to the low-voltage transition.
  • FIGS. 1 and 2 represent a slightly inclined to the horizontal inclined section through the crankcase 1, with part of the crankcase 1 accommodatedem bearing block 2, which is a main bearing seat, and by the crankshaft 3. Shown is only the Arrangement in an end region of the crankshaft 3, specifically the first cylinder.
  • the crankshaft 3 has an end-side projection 4, which is provided with gears 5 for driving the chain of the oil pump of the boxer engine and timing chains.
  • the axis of rotation of the crankshaft 3 is denoted by the reference numeral 5, the bearing axis of the unillustrated large connecting rod eye by the reference numeral 6.
  • the crankshaft 3 On the side facing away from this bearing axis 6, the crankshaft 3, based on the first cylinder, provided with two spaced-apart identical crankshaft cheeks 7 as mass balance.
  • the mutually facing surfaces of the crankshaft cheeks 7 are arranged parallel to each other and perpendicular to the axis of rotation 5.
  • the space formed between the two crankshaft cheeks 7 serves to receive the connecting rod of the first cylinder.
  • the two crankshaft cheeks 7 are formed in the region of the ends, thus the areas of crankshaft cheeks 7, which are remote from the axis of rotation 5, tapered.
  • the crankshaft 3 is, based on the illustrated first cylinder, mounted above the crankshaft cheeks 7 slide bearing 8 in the bearing block 2, specifically in the two receiving halves 9 of the bearing block 2. These receiving halves 9 are connected via webs 10 with the actual crankcase 1. According to the taper of the ends of the crankshaft cheeks 7, the receiving halves 9 of the bearing block 2 are formed reinforced. Between the receiving halves 9, a recess 12 for the crankshaft cheeks 7 is formed.
  • the ends of the crankshaft cheeks 7 are tapered towards one another and the bearing block 2 is of stepped design, such that between the respective crankshaft cheek 7 and the bearing block 2, specifically the associated receiving half 9 Gap 11 is formed of substantially constant thickness.
  • the taper of the ends of the crankshaft cheeks 7 and the reinforcement of the bearing block 2 in this area is effected in that the ends of the crankshaft cheeks 7 are tapered towards each other tapered and the bearing block 2, specifically the receiving halves 9 are designed conically widened, such that between the respective crankshaft cheek 7 and the bearing block 2, a gap 11 of substantially constant thickness is formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP07010763.6A 2006-07-22 2007-05-31 Agencement d'un arbre à manivelle dans un carter d'un moteur à combustion interne Withdrawn EP1895137A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610033975 DE102006033975A1 (de) 2006-07-22 2006-07-22 Anordnung einer Kurbelwelle in einem Kurbelgehäuse einer Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1895137A2 true EP1895137A2 (fr) 2008-03-05
EP1895137A3 EP1895137A3 (fr) 2013-05-01

Family

ID=38830752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07010763.6A Withdrawn EP1895137A3 (fr) 2006-07-22 2007-05-31 Agencement d'un arbre à manivelle dans un carter d'un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP1895137A3 (fr)
DE (1) DE102006033975A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009010734A1 (de) 2009-02-26 2010-09-02 Hyon Engineering Gmbh Umweltfreundlicher Motor mit integriertem Verdichter
WO2012013170A1 (fr) 2010-07-29 2012-02-02 Hyon Engineering Gmbh Moteur à combustion interne écologique à compresseur intégré

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02123256A (ja) * 1988-10-31 1990-05-10 Isuzu Motors Ltd シリンダボディ構造
JPH0351116U (fr) * 1989-09-26 1991-05-17
EP0789166A1 (fr) * 1996-02-06 1997-08-13 Honda Giken Kogyo Kabushiki Kaisha Support d'un arbre balancier d'un moteur à combustion interne

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB442058A (en) * 1934-03-31 1936-01-31 Humboldt Deutzmotoren Ag Improvements in and relating to two-stroke radial cylinder internal combustion engines
DE2033141B2 (de) * 1969-11-21 1973-02-08 Tatra, N P , Nesseldorf (Tschecho Slowakei) Lagerdeckel des kurbelwellenlagers eines hubkolbenmotors fuer ein vereinigtes fahrzeugantriebsaggregat
DE69409888T2 (de) * 1993-08-30 1998-08-27 Honda Motor Co Ltd Auswuchtmechanismus für eine Brennkraftmaschine
JP2005042667A (ja) * 2003-07-25 2005-02-17 Honda Motor Co Ltd 多気筒エンジン

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02123256A (ja) * 1988-10-31 1990-05-10 Isuzu Motors Ltd シリンダボディ構造
JPH0351116U (fr) * 1989-09-26 1991-05-17
EP0789166A1 (fr) * 1996-02-06 1997-08-13 Honda Giken Kogyo Kabushiki Kaisha Support d'un arbre balancier d'un moteur à combustion interne

Also Published As

Publication number Publication date
DE102006033975A1 (de) 2008-01-24
EP1895137A3 (fr) 2013-05-01

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